Lazulite and Pyrite Physical Properties

Lazulite

Pyrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.04-3.17

Uneven

{001} Indistinct, {???} Indistinct

5.5

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Brittle

insoluble in water

5.00-5.20

Uneven, Conchoidal, ConchoidalWalter Schumann

Indistinct on {001}; partings on {011} and {111}

6-6.5

FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lazulite and Pyrite Chemical Formula

While comparing Lazulite and Pyrite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Lazulite and Pyrite chemical formula.

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Lazulite and Pyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite Vs Pyrite during the identification of gemstone. Specific gravity of Lazulite is whereas that of Pyrite is .